I have configured my SAP112 Adapter following instructions from VOIP provider (Sipgate). Calls can be received without any issues. If I make an outgoing call the call is fine but once the call is ended I cannot receive calls or make calls. The Phone 1 light is either off or flashing (off hook or port not ready). The only fix seems to be to turn off and turn on the Adapter and then the Phone port light is a steady green (on hook) and I can then make and receive calls. I have checked and re-checked the configuration but cannot find any errors. Please help!